'commit'

TangDou/XiTi/1000.cpp

@@ -0,0 +1,19 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    printf("hello world\n");
+    //两种方式是等价
+    cout << "a" << 1 << "b" << endl;
+    printf("%s%d%s\n","a",1,"b");
+
+    //将数字转为字符串
+    ostringstream stream;
+    stream << 1; //n为要转字符串的整数
+    string s = stream.str();
+    printf("a%sb\n", s.c_str());
+    //转义
+    printf("%s","%s");
+    return 0;
+}